Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c5bfbc1df0e18c7…

MALICIOUS

PDF

33.5 KB Created: 2021-07-04 03:21:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 63f5ab9b72e119eaae724d76961b0e78 SHA-1: 69e9077377b37269534de5ecb3d791a8aa112abf SHA-256: 3c5bfbc1df0e18c7474f293ef1195ef02d71f07e7b42737fa648cf2b37d22161
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users. It contains links to a known malicious redirector, http://netcdn.tw/app/835599320/free-followers-for-tiktok-game-hack, which likely leads to further malicious content or malware. The document's structure and embedded URLs suggest a phishing or scam attempt designed to exploit user interest in popular games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/835599320/free-followers-for-tiktok-game-hack In PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-heros-of-robloxia_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/mining-simulator-hack-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/drpoppa-anti-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://sfh.minurispenjaringan.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000308f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308F 21800 bytes
SHA-256: 368c2699b26178f0489ce0e2fe652dc959e1bea561decb22f972edd34f54187a
font_01_sfnt_off00006085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6085 18208 bytes
SHA-256: c18dc138d3fa9ce835d1b8f2974e0da5a27744aad7601cad562b97896f2945be

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